Yes, correction, it does say booking via Velocity call centre so JohnK"s daughter may have been booked as a reward seat,This is what I'm wondering. OP says booked via Velocity - which implies an award? If a ticket wasn't available for a 2 year old, did JohnK know it was being booked as an adult award at the time of booking?
If so, that changes the equation.
Haven't done this online lately, but if you book a reward seat via the Velocity call centre, for another person do they ask for a date of birth of that passenger? Because if not that would explain a few things.